Pipe K can fill a tank in 25 hours while pipe L can empty the same tank in 40 hours, find the time taken for tank to fill if pipe L is closed after tank is filled 3/4th.
1
50 hours
2
56.25 hours
3
60 hours
4
50.75 hours
Pipe K can fill a tank in 25 hours while pipe L can empty the same tank in 40 hours, find the time taken for tank to fill if pipe L is closed after tank is filled 3/4th.